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maariee
The formula for the area of a trapezoid with altitude k and bases m and n is . A=k/2 (m+n) solve for m. I REALLYY need help!!!
A=k/2 (m+n) 2A/k = m + n 2A/k - n = m m = 2A/k - n
A) (2A-k) /k B) (2A+kn) / k C) (2A-n) / k
\[\Large A = \frac{k}{2}(m+n)\] \[\Large 2A = k(m+n)\] \[\Large 2A = km+kn\] \[\Large 2A-kn = km\] \[\Large km = 2A-kn\] \[\Large m = \frac{2A-kn}{k}\]